[Asterisk-Users] some EICON Diva 4BRI questions

[Klaus Darilion]

On Fri, April 21, 2006 12:33, David Waugh said:
> Hello Klaus,
...
> I haven't tried spandsp and a V-Series card as the card was not designed
> for fax applications. As a result it has never been tested. If you want
> to fax with the card then we would recommend a normal Diva Server card.
>
> It would probably work in a pass through scenario as just audio is being
> relayed by the card. However, I have not tested this and could not
> comment if this will work with a V-BRI card.
>
> Bascially if you are looking to do pure voice, then use a V-Series card.
> If you want to do anything more than voice, then use a normal Diva
> Server card.

Hi David!

You never know which kind of voice (human, modem, fax) will pass through
the B channel. I guess handling pass-trough modem calls should work, if
they card will disable the echo canceller on detection of the "special
tones" used in modem conversations. Do they?

regards
klaus

>
> Kind regards
> David
>
>
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Klaus
> Darilion
> Sent: 21 April 2006 11:04
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Cc: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: RE: [Asterisk-Users] some EICON Diva 4BRI questions
>
> On Fri, April 21, 2006 11:45, David Waugh said:
>> Hello Klaus,
>>
>> I will answer your questions In turn:
>>
>> 1. Do Eicon DIVA (V-)4BRI cards support TE and NT mode?
>> Yes they do.
>>
>> 2. Can the clock (master/slave) be configured independent from the
> mode
>> (TE/NT)
>> No
>
> Thus, what is the limitation?
> TE = slave  ?????
> NT = master ?????
>
>
>> 6. Difference between V-4BRI and 4BRI: As far as I understand the 4BRI
>> is the better (more expensive) card which also offers FAX on/offramp.
>> Nevertheless I can use V-4BRI for faxing when using spandsp. Both
> cards
>> do support onboard echo cancellation. Are this assumptions correct?
>>
>> The difference between the Diva Server V-Series and the normal Diva
>> Server cards is that you can only use the V-Series for Voice
>> applications. You can not fax with a V-Series card. If you try and fax
>> with a V-Series card you will get an error.
>
> Using spandsp and V-4BRI does not work?
>
> What about a pass-through scenario:
>
> PSTN <-2xBRI-> Asterisk <-2xBRI-> oldPBX
>
> Does Asterisk with the V-4BRI allows to pass through fax calls (or other
> data calls) from the PSTN to the old PBX?
>
>
>> 2. " ...install the isdn4k-utils-devel package...". What is isdn4k ?
>> I'm a little bit confused about what I have to install.
>>
>> This is just a package that contains the capi.h file that is needed to
>> compile the chan_capi-cm driver.
>
> btw: libcapi20-dev on debian ;-)
>
> regards
> klaus
>
>
>
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